Pedal effort-reduction apparatus

Details Pedal effort-reduction apparatus Pedal effort-reduction apparatus

1987-10-23

1990-03-13

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Foot operated

74518, 74560, G05G 114

Patent

active

049074687

ABSTRACT:
A pedal effort-reduction apparatus according to the present invention comprises a pedal arm and a lever which is movable as one therewith. First and second torsion coil springs are provided between the lever and a support bracket. The first coil spring urges the pedal arm to return to its initial position before the arm, starting from the initial position, reaches a position at a predetermined rotational angle to the initial position. When the pedal passes the predetermined-angle position, the first spring begins to urge the pedal arm in the direction in which it is being pushed. The second spring is attached to the lever so as to urge the pedal arm only in the direction in which it is being pushed. Therefore, when the pedal arm is pushed past the predetermined-angle position, the repulsive force generated by both the first spring and the second spring then acts as a pedal effort-reduction force.

REFERENCES:
patent: 3199367 (1963-04-01), Zetye
patent: 3302763 (1964-11-01), Wobrock

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